WANG Pei-ping1, ZHAO Shi-wei2, YUE Xi-ming1, et al. ANALYSIS OF PROBLEMS EXISTING IN OPERATION OF ZGM113G MEDIUM SPEED COAL PULVERIZERS[J]. Thermal power generation, 2010, 39(1): 56-57.
WANG Pei-ping1, ZHAO Shi-wei2, YUE Xi-ming1, et al. ANALYSIS OF PROBLEMS EXISTING IN OPERATION OF ZGM113G MEDIUM SPEED COAL PULVERIZERS[J]. Thermal power generation, 2010, 39(1): 56-57.DOI:
The problems occurred in operation of ZGM113G medium speed coal pulverizers installed for 600 MW unit in Hebi Fenghe Power Plant
such as vibration
low loading pressure
insufficient output capacity
coal blockage
and leakage of pulverized coal etc.
have been presented.Analysis shows that the vibration is related to coal quality and thickness of the coal layer;the low loading force is resulted from failure to operate the solenoid valve
and affecting the output capacity;the coal blockage in coal pulverizer and leakage of pulverized coal are caused by small air flow rate and low pressure of the sealing air.